John Mark is named in Acts as an assistant accompanying Paul and Barnabas on one of their missionary journeys. By some he is regarded as identical with Mark the Evangelist.
Biblical account
Several times the Book of Acts mentions a certain "John, who was also called Mark" or simply "John":
When [Peter] realized this, he went to the house of Mary, the mother of John whose other name was Mark, where many were gathered together and were praying.[Acts 12:12]
And Barnabas and Saul returned from Jerusalem when they had fulfilled their mission, bringing with them John whose other name was Mark.[Acts 12:25]
When they arrived at Salamis, they proclaimed the word of God in the synagogues of the Jews. And they had John to assist them.[Acts 13:5]
Now Paul and his company set sail from Paphos, and came to Perga in Pamphylia. And John left them and returned to Jerusalem; but they passed on from Perga and came to Antioch of Pisidia.[Acts 13:13â€"14]
And Barnabas wanted to take with them John called Mark. But Paul thought best not to take with them one who had withdrawn from them in Pamphylia, and had not gone with them to the work. And there arose a sharp contention, so that they separated from each other; Barnabas took Mark with him and sailed away to Cyprus, but Paul chose Silas and departed, being commended by the brethren to the grace of the Lord.[Acts 15:37â€"40]
From these it may be gathered that John's mother Mary had a large house in Jerusalem to which Peter fled after escaping prison; that John assisted Paul and Barnabas on their first missionary journey in Cyprus but then returned to Jerusalem; and that later controversy over receiving John Mark back led to Paul and Barnabas parting ways, with Barnabas taking Mark back to Cyprus and both thereafter disappearing from the narrative of Acts. The reasons for John Mark's departure to Jerusalem and the subsequent disagreement between Paul and Barnabas have been subject to much speculation, but there is simply too little data to regard any explanation with confidence.
Identification
It was common for Jews of the period to bear both a Semitic name such as John and a Greco-Roman name such as Mark. But since John was one of the most common names among Palestinian Jews, and Mark was the most common in the Roman world, caution is warranted in identifying John Mark with any other John or Mark.
Ancient sources in fact consistently distinguish John Mark from the other Marks of the New Testament and style him Bishop of Byblos. Nor was John Mark identified in antiquity with any other John, apart from rare and explicit speculation.
Medieval sources, on the other hand, increasingly regarded all New Testament references to Mark as Mark the Evangelist, and many modern scholars have agreed in seeing a single Mark. The very fact that various writings could refer simply to Mark without further qualification has been seen as pointing to a single Mark.
First, there is Mark the cousin of Barnabas, mentioned by Paul as a "fellow worker" in the closings of three Pauline epistles. In antiquity he was regarded as a distinct Mark, Bishop of Apollonia. If, on the other hand, these two Marks are to be identified, the fact that these epistles (if authentic) were written after the departure of John Mark with Barnabas in Acts must suppose some later reconciliation. But a majority of scholars, noting the close association of both Marks with Paul and Barnabas, indeed regard them as likely the same person.
Mark the Evangelist, however, is known only from the patristic tradition, which associates him only with Peter and makes no mention of Paul. Jerome alone suggests that the Mark of whom Paul speaks may be the Evangelist. But modern scholars have noted that as Peter fled to the house of John Mark's mother, the two men may have had a longstanding association.
Several scholars have argued, on the other hand, for identifying John the Evangelist and/or John the Elder with John Mark; there is, in fact, a great deal of controversy surrounding the various New Testament people named John.
Later sources
The Acts of Barnabas, apparently an apocryphal work of the 5th century, purport to be written by John Mark and to detail the missionary journey and martyrdom of Barnabas in Cyprus, thus picking up where the account of Acts leaves off.
The Encomium of the Apostle St. Barnabas, written by Alexander the Monk in the 6th century, also gives an extensive account of the activity of Barnabas and John Mark in Cyprus. After the death of Barnabas, John Mark leaves for Ephesus, and the account then continues by identifying him with Mark the Evangelist.
References
